CVE-2018-0023

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

JSNAPy is an open source python version of Junos Snapshot Administrator developed by Juniper available through github. The default configuration and sample files of JSNAPy automation tool versions prior to 1.3.0 are created world writable. This insecure file and directory permission allows unprivileged local users to alter the files under this directory including inserting operations not intended by the package maintainer, system administrator, or other users. This issue only affects users who downloaded and installed JSNAPy from github.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 11, 2018

Last Modified

November 21, 2024

References (2)

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
jsnapy1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.2.2
  • every version up to 1.3.0: fixed in 1.3.0
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 26× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 84 of 147 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 16 repeat rows among the latest 100 are merged into the row they repeat. The 63 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 00:46 UTCEG score recompute
  2. 2026-10-11 13:41 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-10 19:55 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  4. 2026-10-09 20:02 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  5. 2026-10-08 16:36 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  6. 2026-10-07 23:41 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-10-06 15:12 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-10-05 17:39 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  9. 2026-10-04 23:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-10-03 14:21 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-09-30 14:59 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-09-30 09:49 UTCEG score recompute
  13. 2026-09-29 06:32 UTCOSV refresh
  14. 2026-09-28 13:45 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-09-27 13:40 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  16. 2026-09-26 15:53 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-09-26 00:19 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-09-24 13:59 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-09-23 13:42 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-09-21 20:27 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  21. 2026-09-20 20:09 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  22. 2026-09-19 15:36 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-09-17 19:22 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  24. 2026-09-15 03:05 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  25. 2026-09-13 16:42 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
Show 59 more
  1. 2026-09-12 14:56 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-09-11 09:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  3. 2026-09-09 11:53 UTCOSV refresh
  4. 2026-09-05 15:24 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  5. 2026-09-04 13:56 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  6. 2026-09-04 05:02 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  7. 2026-09-02 14:07 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  8. 2026-09-01 03:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  9. 2026-08-30 19:13 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-08-28 21:36 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-08-27 14:21 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  12. 2026-08-26 14:41 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  13. 2026-08-25 13:44 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  14. 2026-08-23 00:14 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  15. 2026-08-22 19:07 UTCOSV refresh
  16. 2026-08-21 23:44 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  17. 2026-08-19 16:59 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  18. 2026-08-18 13:43 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  19. 2026-08-16 14:51 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  20. 2026-08-16 02:10 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  21. 2026-08-15 01:26 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  22. 2026-08-12 13:46 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  23. 2026-08-09 13:42 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  24. 2026-08-08 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  25. 2026-08-07 16:22 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  26. 2026-08-06 23:33 UTCOSV refresh
  27. 2026-08-06 13:42 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  28. 2026-08-05 19:13 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  29. 2026-08-01 04:12 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  30. 2026-07-30 16:24 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  31. 2026-07-30 01:26 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  32. 2026-07-28 15:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  33. 2026-07-26 14:51 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  34. 2026-07-23 14:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  35. 2026-07-23 01:31 UTCEG score recompute
  36. 2026-07-22 22:11 UTCEG score recompute
  37. 2026-07-22 14:04 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  38. 2026-07-21 15:21 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  39. 2026-07-21 14:48 UTCOSV refresh
  40. 2026-07-20 17:04 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  41. 2026-07-19 14:28 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  42. 2026-07-19 02:26 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  43. 2026-07-18 10:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  44. 2026-07-16 16:59 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  45. 2026-07-15 16:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  46. 2026-07-15 01:56 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  47. 2026-07-13 22:26 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  48. 2026-07-12 05:43 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  49. 2026-07-11 08:24 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  50. 2026-07-09 19:06 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  51. 2026-07-08 15:11 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  52. 2026-07-07 13:42 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  53. 2026-07-06 16:24 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  54. 2026-07-06 02:20 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  55. 2026-07-05 02:27 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  56. 2026-07-04 10:26 UTCOSV refresh
  57. 2026-07-04 06:28 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  58. 2026-07-02 16:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  59. 2026-07-01 15:03 UTCEPSS rescoreEPSS 0.3% · 21st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-0023?
CVE-2018-0023 is a medium-severity vulnerability; its CVE record was published on April 11, 2018. JSNAPy is an open source python version of Junos Snapshot Administrator developed by Juniper available through github. The default configuration and sample files of JSNAPy automation tool versions prior to 1.3.0 are created world writable. This insecure file and directory permission allows…
When was CVE-2018-0023 made public?
CVE-2018-0023 was made public on April 11, 2018: that is the date its CVE record's CNA, Juniper Networks, Inc., gives for when the vulnerability was made public. The CVE record itself was published on April 11, 2018. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2018-0023 actively exploited?
CVE-2018-0023 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-0023?
CVE-2018-0023 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2018-0023?
A fix for CVE-2018-0023 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-0023

Explore →

Is Your Infrastructure Affected by CVE-2018-0023?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs